6. Sex, Reproductive Systems and Evolution

Question 1

Advantage of Sex

Answer 1

Bringing Together Favorable Mutations and Elimination of Harmful Mutations

Question 2

Outbreeding

Answer 2

Mates are less closely related than random

Question 3

Inbreeding

Answer 3

Mates are more closely related than random
- Increases homozygosity
-Decreases heterozygosity (H)

Question 4

Outcrossing

Answer 4

mating with someone else (either by outbreeding or inbreeding)- Fusion of gametes from 2 parents (gametes derive from meiotic reductive division

Question 5

Selfing (self-fertilization)

Answer 5

mating with yourself (most extreme form of inbreeding but NOT asexual reproduction)

Question 6

Sexual Reproduction

Answer 6

• 2 parents contribute genetic material to offspring
• Meiotic, reductive division to form gametes
• Fusion of gametes

Question 7

Asexual reproduction

Answer 7

• 1 parent contributes genetic material
• No meiotic reductive division
  -Offspring are genetic replicas (clones) of parents